(Academic) XYZ Company is currently selling its single product for $15. Variable costs are estimated to remain at 70% of the current selling price and fixed costs are estimated to be $4,800 per month. If XYZ increases its selling price by 10%, its contribution margin ratio will: Select one: a. increase O b. Cannot determine with the information given. O c. None of the given answers. O d. not change. e. decrease. Clear my choice